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-   -   Real time SR conversion via spdif - Avid HD IO (http://duc.avid.com/showthread.php?t=402376)

ehaber 12-11-2018 01:42 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
By the way, regarding the post that recommended the MTRX (which is a great unit), for sample rate conversion, the MTRX is similar to the HD I/O; that is the chassis digital I/O that come with the MTRX (16 channel of AES, coax MADI, Dante if you have a Dante card) do not have SRC; while if you separately purchase and install a slot digital I/O AES, MAdi, or (the new) Dante card, those slot I/O cards do sample rate convert.

Eric Lambert 12-11-2018 08:37 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
My HD IO does in fact have a digital card installed into one of the expansion slots. It looks like this:

https://www.google.com/url?sa=i&sour...44675690398949

Shouldn't I then be able to get realtime SRC with that card? I'd try it now, I'm just not currently equipped with the proper DB25 cable nor the spdif-to-AES adapter.

Darryl Ramm 12-11-2018 09:32 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Yes. Edit: Ah but... the photo you link to is a 192 IO digital card, that won't work in a HD I/O. I hope you have the actual HD I/O version of a digital card.

So hoping you have the HD I/O digital card all you need is one of these...

https://www.bhphotovideo.com/c/produ...Data_Link.html I'd much rather do that than try to just use an analog cable with balun in it.

You should be able to wire up a XLR to a DB-25. Much cheaper then buying a cable if you just need one connection.

But here is the cable if you want to buy one... https://www.sweetwater.com/store/det...gisnake-4-foot

If you buy another brand DB-25 cable set make sure it's wired for the TASCAM/Avid standard.

https://www.sweetwater.com/sweetcare...-pinout-guide/

Top Jimmy 12-11-2018 09:41 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Quote:

Originally Posted by Darryl Ramm (Post 2509127)
If you buy another brand DB-25 cable set make sure it's wired for the Yamaha/Avid standard.


Doesn't Avid use the Tascam pinout?



Sent from my iPad using Tapatalk

Darryl Ramm 12-11-2018 09:43 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Quote:

Originally Posted by Top Jimmy (Post 2509128)
Doesn't Avid use the Tascam pinout?

Doh I transposed it in my head. Edited my post to fix.

Eric Lambert 12-11-2018 11:07 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Yes, I have the HD IO card.

Rich Breen 12-12-2018 08:13 AM

Re: Real time SR conversion via spdif - Avid HD IO
 
Quote:

Originally Posted by Eric Lambert (Post 2509096)
So... anyone know of a small, external, high-quality sample rate convertor? ;)

(but seriously, I do need one)


Hi Eric - not particularly small (1 rack unit), but I've got a Behringer SRC2496 box that's been gathering dust here for as long as I can recall - I bought it for some particular task years ago and haven't used it since - honestly, I'd give it to you free if you picked it up.


best,
rich

Eric Lambert 12-12-2018 11:38 AM

Re: Real time SR conversion via spdif - Avid HD IO
 
Wow, Rich, that's quite generous! I'll email you. Thanks!

dsumich 09-01-2020 04:04 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Hey guys, found this old thread. I have the exact same issue. I have the Digital I/O card installed in my 96 HD I/O, but not sure how to utilize it. Would I just use a cable to run from the s/pdif output of the OX to the optical s/pdif input on the expansion card of the I/O? Something like this?

https://www.banggood.com/CE-LINK-5M-...r_warehouse=CN

If that happens to work, do you have to do anything to kick in the SRC, or does it happen automatically?

dsumich 09-01-2020 04:38 PM

Re: Real time SR conversion via spdif - Avid HD IO
 
Quote:

Originally Posted by dsumich (Post 2576519)
Hey guys, found this old thread. I have the exact same issue. I have the Digital I/O card installed in my 96 HD I/O, but not sure how to utilize it. Would I just use a cable to run from the s/pdif output of the OX to the optical s/pdif input on the expansion card of the I/O? Something like this?

https://www.banggood.com/CE-LINK-5M-...r_warehouse=CN

If that happens to work, do you have to do anything to kick in the SRC, or does it happen automatically?

Never mind this question. I think I understand from Darryl's post above you need the converter from s/pdif to AES/EBU, and then run that into the DB25 digi snake cable that connects to your digital i/o card. I will get the two products linked to above (seems to be about $200 for both these days) and report back how it goes. I am guessing though you still need to turn on SRC in the Hardware Setup Dialog on the Digital tab for which ever channel pair you are i/o'ing on.


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